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van der Pal-de Bruin KM, van der Pal SM, Verloove-Vanhorick SP, Walther FJ.van der Pal-de Bruin KM, et al. Among authors: walther fj.Early Hum Dev. 2015 Feb;91(2):97-102. doi: 10.1016/j.earlhumdev.2014.12.007. Epub 2015 Jan 12.Early Hum Dev. 2015.PMID: 25590235Review.
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van der Lugt NM, van de Maat JS, van Kamp IL, Knoppert-van der Klein EA, Hovens JG, Walther FJ.van der Lugt NM, et al. Among authors: walther fj.Early Hum Dev. 2012 Jun;88(6):375-8. doi: 10.1016/j.earlhumdev.2011.09.013. Epub 2011 Oct 14.Early Hum Dev. 2012.PMID: 22000820Free article.